Service/ adjustments, Service and adjustments – Husqvarna 141 User Manual

Page 13

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13

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Make your first cut

1/3

of the way through

the bottom of the limb.

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Next make a 2nd cut all the way through
the limb.
Then cut a third overcut leaving
a 1 to 2 inch collar from the trunk of the tree.

First cut

Second cut

Third cut

Collar

Pruning technique

SERVICE AND ADJUSTMENTS

WARNING:

Muffler is very hot during

and after use. Do not touch the muffler or al-
low combustible material such as dry grass
or fuel to do so.
We recommend all service and adjustments
not listed in this manual be performed by an
Authorized Service Dealer.

MAINTENANCE SCHEDULE

Check:

Fuel mixture level

Before each use

. . . .

Bar lubrication

Before each use

. . . . . . .

Chain tension

Before each use

. . . . . . .

Chain sharpness

Before each use

. . . .

For damaged parts

Before each use

. .

For loose caps

Before each use

. . . . . .

For loose fasteners

Before each use

. . .

For loose parts

Before each use

. . . . . .

Inspect and Clean:

Bar

Before each use

. . . . . . . . . . . . . . . .

Complete saw

After each use

. . . . . . .

Air filter

Every 5 hours*

. . . . . . . . . . . . .

Chain brake

Every 5 hours*

. . . . . . . .

Spark arresting screen

and muffler

Every 25 hours*

. . . . . . . . .

Replace spark plug Yearly

.

Replace fuel filter

Yearly

. . .

* Hours of Operation

AIR FILTER

CAUTION

:

Do not clean filter in gasoline

or other flammable solvent to avoid creating
a fire hazard or producing harmful evapora-
tive emissions.

Cleaning the air filter:

A dirty air filter decreases engine perform-
ance and increases fuel consumption and
harmful emissions. Always clean after 15
tanks of fuel or 5 hours of operation, which-
ever comes first. Clean more frequently in
dusty conditions. A used air filter can never
be completely cleaned. It is advisable to re-
place your air filter with a new one after every
50 hours of operation, or annually, whichever
comes first.
1. Loosen 3 screws on cylinder cover.
2. Remove cylinder cover.
3. Remove air filter.
4. Clean the air filter using hot soapy water.

Rinse with clean cool water. Air dry com-
pletely before reinstalling.

5. Reinstall air filter.
6. Reinstall cylinder cover and 3 screws.

TIghten securely.

Air Filter

Air Filter
Screws

CARBURETOR ADJUSTMENTS

WARNING:

The chain will be moving

during most of this procedure. Wear your
protective equipment and observe all safety
precautions. The chain must not move at idle
speed.
The carburetor has been carefully set at the
factory. Adjustments may be necessary if
you notice any of the following conditions:

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Chain moves at idle. See IDLE SPEED--T
adjusting procedure.

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Saw will not idle. See IDLE SPEED--T ad-
justing procedure.

Idle Speed---T

Allow engine to idle. If the chain moves, idle
is too fast. If the engine stalls, idle is too slow.
Adjust speed until engine runs without chain
movement (idle too fast) or stalling (idle too
s l ow ) . T he i dl e s peed s c r ew

is labeled "T".

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Tur n i dl e s peed s c r ew ( T ) c l oc k w i s e t o i n-
crease engine speed.

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Turn idle speed screw (T) counterclock-
wise to decrease engine speed.

If you require further assistance or are unsure
about performing this procedure, contact your
authorized service dealer.

BAR MAINTENANCE

If your saw cuts to one side, has to be forced
through the cut, or been run with an improper
amount of bar lubrication it may be neces-
sary to service your bar. A worn bar will dam-
age your chain and make cutting difficult.
After each use, ensure ON/STOP switch is
in the STOP position, then clean all sawdust
from the guide bar and sprocket hole.
To maintain guide bar:

S

Move ON/STOP switch to the STOP posi-
tion.

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Loosen and remove chain brake nuts and
chain brake. Remove bar and chain from
saw.

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